Week 3 Verification of Weld Joints
VERIFICATION OF WELD JOINTS
OBJECTIVES
To Simulate three different types of welding using three different weld materials
Weld Material used:
Case 1. Stainless Steel: In this case, the material of the plates must also be the same. Use Stainless steel for both weldments and plates. No need to add flux to the weldments.
Case 2. Aluminium Alloy: The material to be chosen for this case is Aluminium alloy(high strength, wrought). [Plate material to be used is stainless steel]
Case 3. Bronze: In order to simulate "Brazing", you should be using bronze as the weld material. Assign Stainless Steel to both plates and Copper to the "Ribs".
Run the simulation for a load of 15000N that is to be applied at the rectangular hole in the small plate( Same as in the video).
For each case, find out the Directional Deformation and equivalent strain experienced by the setup. Identify the weld joint that experiences the highest equivalent stress in each case and compare the results for all three cases
PROCEDURE
- First, we have to input the engineering materials with required properties or else by creating with required properties.
- Then we have to import our model into ansys, import the model and open it in space claim so that ansys will read it.
- Then assign required connections in this assignment we will use bonded contact for the weld elements and frictional contact between the plate and ribs.
- Then mesh the component with required mesh size in this assignment we will use
- Mesh – default
- Sizing – 7mm
- Nodes – 26031
- Elements – 4168
- Analysis setting
- fixed support and force act
- Then give the required solution parameters then solve .
CASE1: In this case, the material of the plates must also be the same. Use Stainless steel for both weldments and plates. No need to add flux to the weldments.
Total deformation
Equivalent stress
Equivalent stress of weld
Equivalent elastic strain
Safety factor
Contact pressure
CASE2: The material to be chosen for this case is Aluminium alloy(high strength, wrought). [Plate material to be used is stainless steel]
Total deformation
Equivalent stress
Equivalent stress of weld
Equivalent elastic strain
Safety factor
Contact pressure
CASE3: Bronze: In order to simulate "Brazing", you should be using bronze as the weld material. Assign Stainless Steel to both plates and Copper to the "Ribs".
Total deformation
Equivalent stress
Equivalent stress of weld
Equivalent elastic strain
Safety factor
Contact pressure
RESULT
|
Total Deformation (mm) |
Max Equivalent stress (MPa) | Max Equivalent stress on weld (MPa) | Max Equivalent strain | Max contact pressure (MPa) | safety factor | |
| CASE1 | 0.35 | 340.3 | 302.39 | 0.00185 | 40.532 | 10 |
|
CASE2 |
0.365 | 344.93 | 251.71 | 0.0034 | 38.722 | 10 |
| CASE3 | 0.406 | 351.18 | 265.3 | 0.00332 | 41.684 | 10 |
CONCLUSION
The alluminium alloy with high strength and wrought choosen as the weld elements because the max stress developed is less than the othe materials and max elastic strain also high when compared with other materials.